When Bobby Jones goes to retrieve his wayward golf ball at the bottom of a cliff he little expects that he will find a dying man there. With his last breath the man asks (3z(BWhy didnt they ask Evans?(3y (BIntrigued by this question Bobby and his vivacious friend Frankie Derwent set out to solve the mystery - putting their own lives in great danger along the way.

Also published as The Boomerang clue.